Pump for lubricating apparatus



Aug. 29, 1933.

J. BYsTRlcKY 1,924,707

PUMP FOR LUBRICATING APPARATUS Filed Nov. 16, 1929 Patented Aug. 29,1933 UNITED STATES PULIP FOR LUBRICATING APPARATUS Joseph Bystricky,Chicago, Ill., assignor to Alemite Corporation, Chicago, Ill., a,corporation of Delaware Application November 16, 1,929

Serial No. 407,641

9 Claims. (Cl. 184-7) My invention relates to a lubricant pump unit foruse in the so-called centralized systems of lubrication for lubricatinga plurality of bearings T 1 from a single source of lubricant supplythrough -5 branched conduits to the bearings to be lubricated, andmetering means in the conduits and adjacent the bearings to control thequantity of lubricant supplied to each bearing. My invention isparticularly designed for use with the centralized lubricating systemsapplied to automotive vehicles.

An object of my invention is to provide an improved pump unit for use asa part of the centralized lubricating system of automotive vehicles.

Another object of my invention is to provide a new and novel method ofoperating the pump of such a system.

Another object of my invention is to provide an improved pump unit whichis combined with the drivers seat of an automotive vehicle andresponsive to movements of the seat.

Another object of my invention is to provide an improved pump unit foruse with a centralized "-5 system oi lubrication, which pump unit islocated within the drivers seat of an automotive vehicle and operable bythe vertical movements of the seat when occupied by the driver.

Another object of my invention is to provide an improved pump unit insuch a system which is located within the drivers seat and operable bymovements of said seat, in combination with a lubricant reservoir foruse in said system, which reservoir is located in the engine compartmentof the automotive vehicle.

Further objects and advantages of my invention will become more apparentfrom the following detailed description and accompanying drawing, inwhich Fig. 1 is a diagrammatic sectional elevation of the seat oi anautomotive vehicle showing the 'automotive vehicle by. means of bolts 5which pass through the ila-nge 6 which is part of the main casting 7 ofvmy pump unit. A light metal strip 8 is suitably mounted across the topof the seat frame 4, thereby forming an enclosure for the springs 9 ofthe seat. A lubricant vreservoir lO'of any well-known suitable type ismounted on the dash 11 oi an automotive vehicle Yand is connected withthe pump of my invention by is reciprocably mounted a pump piston 16.The

bore 15 is enlarged at the upper end of the casting 7 to form a chamber17 in which is reciprocably mounted the enlarged end 18 of a guide stem19 which is screw threaded at 20 to the pump piston 16. Y Y

A cap 21 is screw threaded over the upper end of the casting 7 and hasan aperture 22 therein through which the guide stem 19 passes but whichaperture is of a smaller diameter than the enlarged end 18 of the guidestem, serving as a stop therefor to prevent withdrawal of the stem fromthe chamber 17. A compression spring 23 is disposed between the enlargedend 18 of the guide stern 19 and the bottom of the chamber 17, servingnormally to cause the enlarged pordischarge port which opens into anenlarged Valve chamber 25. A ball check valve 26 is seated against thelower end of the port 2liV and maintained in position by a compressionspring 27.

A suitable pipe connection or union 28 is screw threaded in the lowerportion of the valve charnber 25 and forms a seat for the spring 27 andalso a leak-proof connection with a conduit or feed line 29 which leadsto various bearings Soto be lubricated.` A cross bore 31 is formed inthe side wall of a casting 7 and communicates with the pump cylinder 15.A suitable pipe connection 32 is screw threaded in the bore 31y andforms a leak-proof connection with the conduit 12 which leadsto vthereservoir 10. An operating head 35 is screw threaded at the top of theguide stem 19 and is adapted to contact with Vthe under side ofthe metalstrip 8 which is mounted across the top of the springs of theseat of theautomotive vehicle as Villustrated in Fig. 1. The parts are designed toallow such Contact to be made with the head 35 when the seat is in theposition illustrated in Fig. l, without an occupant, that is, with thesprings 9 in normal position when no weight is placed upon the seat.

In the operation of my device the reservoir 10 is iilled with a suitablelubricant which thereafter flows through the conduit 12 into the pumpcylinder 15 when the pump `piston 16 is in the raised positionillustrated in Fig. 2, which will be the 'condition when the driversseatfis unoccufv pied.-v When the metal strip 8 is iiexed Vdownwardly,vdue to lweightv being f placed `upon the seat such as the driveroccupying the seat, the head 35 which is in contact with the metal strip8 will be moved downwardly, compressing the spring 23 located within thechamber 17 and forcing the pump piston 16 downwardly in the pumpcylinder 15.

close the bore 31 so that lubricant will be entrapped in the lower partof the pump cylinder 15. Further downward .movement of the pump piston16 will force the lubricant through theA port 24, moving the ball checkvalve 26 from its seat and forcing the lubricant into the conduit 29from whence it will be fed to the bearings 30,V

passing iirst through suitable metering devices 3'7 which are locatedbefore each bearing and which are well known in the art.

v When the driver leaves the seat' and pressure on the metal strip 8 isremoved the pump piston '16 will be raised bythe spring 23 which willcreate a suction in the pump cylinder 15 when the valve 26 is seated anddraw a fresh charge of lubricant into the pump cylinder 15 through thevconduit 12 from the reservoir. It will be seen that a continued pumpingaction of the piston 16 up vand down within the cylinder 15 will drawlubricant from the reservoir 10 and force it through the conduit 29 tothe bearings 30.

InA the use of this device it will be necessary Vto first charge thesystem by several pumping quantity of lubricant will be forced intoV thesystem with each movement of the pump.` It will be found in use thatsuch a small charge is practical and will maintain the system full oflubricant at all times with no danger of overcharging.

t Having thus described my invention, what I claim is: Y Y

1. A system of centralized lubrication for use in automotive vehicles,comprising bearings-to be lubricated, a reservoir containing lubricant,a resilient seat depressible upon application of weight in said vehicle,and a pump supplied with lubricant from said reservoir, said pumpdisposed within said seat and operatively connected therewith wherebymovements vof the seat operate the pump to force lubricant to thebearings.

2. A system of centralized lubrication for use in automotive vehicles,comprising a reservoir containing lubricant, a spring mounted seat insaid vehicle adapted to vertical movements, a

lubricant pump disposed within said seat and responsive to verticalmovements of the seat, and

conduits connecting the reservoir, 'pump and bearings whereby lubricantis forced from the reservoir to the bearings by the pump upon verticalmovements of the seat.

3. A system ofcentralizedr lubrication forY use in automotive vehicles,comprising a reservoir containing lubricant, bearings to be lubricated,a pump connected with the reservoir and bearings for forcing lubricantfrom the `reservoir tothe bearings, a weight depressible seat in saidvehicle, and means to operatively connect said pump 'Y As the pumppistonv 16 is' moved past the bore 31 it will act as a valve and j andseat wherebythe movements of said seat operate thepump. p

4. A system of centralized lubrication for use in automotive vehicles,comprising bearings to beglubricated, a reservoir containing lubricant,a spring mounted seat in said vehicle adapted to Vertical movements, aflexible top on said seat, a pump connected with said reservoir andbearings, a pistonl within said pump to force lubricant from theHreservoir to the bearings, a head on said piston adapted to contactwith the flexible top -of the'seat, and a spring to maintain said headin contact with said seat whereby vertical movements of the seat operatethe pump.

5. A system of centralized lubrication for use in automotive vehicles,comprising bearings to beflubricated, areservoir containing lubricant, aspring mounted seat in said vehicle adapted to vertical movements, aflexible'top cn said seat, a lubricant pump connected with the reservoirand il the bearings and mounted within said seat, a piston withinsaidpump for forcing lubricant into the bearings, a head on said pistonadapted to contact with the flexible top of the seat whereby the pistonwill be moved downwardly to discharge 100 lubricant upon flexing of thetop of said seat,

Yand means to maintain said head in contactwith said seat at all timeswhereby to raisesaid piston when the seat is relieved.A t

6. In a system of centralized lubrication for 'use inautomotivevehicles, a plurality of bearings to be lubricated, a reservoircontaining lubricant to be fed to the bearings, a seat in said vehicle,apump for forcing lubricant to the bearingscomprising a pump cylinder, apump piston reciprocable therein, an inlet port connected with thereservoir, a discharge port connected with the bearings, and means tooperatively connect the piston and seat to cause reciprocation of thepiston with the seat.

7. In a system of centralized lubrication for use-in automotivevehicles, Va plurality of bearings to be lubricated, areservoir'containing lubricanta spring mounted seat lin said vehicleadapted to vertical movements, a lubricant pump disposed within the seatand operatively connected therewith to be responsive to verticalmovements of the seat, a piston reciprocable within said pump ,adaptedto discharge lubricant from the pump to the bearings upon downwardmovements of the seaaand a spring to return said piston to its.normalposition uponupward movements of the seat.

lubricated, a reservoir containing lubricant, a `seat capable of beingdepressed by Weight in said vehicle,` and pump means supplied withlubricant from said reservoir, said pump means disposed within said seatand operatively connected therewith whereby movements of the seatoperateto allow lubricant to pass to the bearings.

9.1A system of centralized lubrication for use in automotive vehiclescomprising a reservoir containing lubricant, a spring mounted seat insaid vehicle adapted to vertical movements, valve means disposed within'said seat and responsive to vertical movements of the seat, andconduits connecting thek reservoir, valve and bearings whereby lubricantmay pass from the reservoir to '.145

lthe bearings through `the valve upon vertical V,{novements of the seat.

JosEPH BYSTRICKY.

